Which type of network utilizes radiowaves for data transfer?

In data communication, a wireless network is specifically designed to transfer data using radiowaves, which enables connections without the need for physical cabling. This technology allows devices such as smartphones, laptops, and tablets to connect to the internet or communicate with one another over a distance without the constraints of wires.

Wireless networks are vital in providing flexibility and mobility, as users can move freely within the coverage area without losing connectivity. This type of network employs various standards and technologies such as Wi-Fi and Bluetooth, both of which utilize radiowaves to facilitate communication between devices.

In contrast, a wired network relies on physical cables for data transfer, such as Ethernet cables or fiber optics, which do not use radiowaves. A personal area network constitutes a smaller range of connectivity, usually within a few meters, but it can either be wired or wireless and does not exclusively focus on radiowaves. Similarly, a fiber optic network uses light signals transmitted through glass fibers, again excluding the use of radiowaves for data transfer.

Thus, the choice of a wireless network unequivocally aligns with the requirement of utilizing radiowaves for data transmission, making it the correct answer.